<VV> Oil Filters & gpm (Gallons per minute)

[Frank DuVal]

Chuck,

Engine oil pressure is created by limiting the flow of the positive 
displacement pump by the small passages of the bearings, not the oil 
filter. The pressure regulator valve is there to limit the maximum 
pressure that can be in the system, not set a minimum pressure. Have a 
bearing fail, and the oil pressure will drop like a rock, the oil filter 
will not keep the pressure up (unless it is clogged). So there should be 
no HP gain with a high flow oil filter, as the bearings are still the 
limiting factor of flow.

And no, every oil  (and other) filter I have seen filters by passing the 
flow through the paper media, not along it.

Back to the research lab with you too!

Frank DuVal

Lets see, plumbing is like electricity, Pressure=voltage....  P=F*R     
Pressure= Flow times resistance of the pipe.

BBRT wrote:

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>Secondly, some oil filters allow 7-9 gpm flow while the Pure Power claims 20 gpm, thereby implying less resistance to oil flow and therefore less HP required to run oil pump.  "When the resistance is reduced, as with the Pure Power! Oil Filter, the oil pressure and horsepower INCREASES. This is can be compared to installing a more efficient set of headers or exhaust system. The filter does not "make" horsepower, it "FREES" horsepower that is being wasted trying to force oil through and obstruction ("throwaway filter" or bypass"). There have been many dyno tests done around the world all with similar results. We do our testing at Southwest Research Institute (SwRI) which is the premier testing laboratory for automotive products and is used by O.E.M.s and the U.S. Govt. http://www.swri.org/3PUBS/BROCHURE/D08/OILFILT/oilfilt.HTM "
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